The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 03, 2023

Filed:

Nov. 30, 2018
Applicants:

China Petroleum & Chemical Corporation, Beijing, CN;

Shanghai Research Institute of Petrochemical Technology Sinopec, Shanghai, CN;

Inventors:

Song Hu, Shanghai, CN;

Shuai Hu, Shanghai, CN;

Weisheng Yang, Shanghai, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/40 (2006.01); C07D 301/32 (2006.01); C07C 303/04 (2006.01); B01D 3/32 (2006.01); C07D 303/04 (2006.01);
U.S. Cl.
CPC ...
C07D 301/32 (2013.01); B01D 3/322 (2013.01); B01D 3/324 (2013.01); B01D 3/40 (2013.01); C07D 303/04 (2013.01);
Abstract

A method for producing an epoxyalkane includes the step of separating a stream containing an epoxyalkane and an extracting agent in a separation column having a column kettle reboiler. A part of a stream in the column kettle of the separation column enters an extracting agent purifier and is treated to obtain a gas phase light fraction that returns to the separation column and a liquid phase heavy fraction that is subjected to a post-treatment. The method can be used in the industrial production of an epoxyalkane.


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